Question

What is the simplification of (-1)⁴ × (-1)⁻⁴ ?

Answer 1

(-1)⁴ × (-1)⁻⁴

= 1 × 1/(-1)⁴

= 1 × 1/1

= 1 × 1

= 1

Answer 2

$( - 1) {}^{4} \times {( - 1)}^{( - 4) } \\ = {( - 1)}^{(4) \times ( - 4)} \: \\ by \: using \: formula \: \\ {a}^{m} \times {a}^{n} = {a}^{(m + n)} \\ {a}^{4 + ( - 4)} \\ = {a}^{0} \\ = 1 \: \: \: because \: {a}^{0} = 1$

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